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1. ADITYA-L1
ISRO’S MISSION TO SUN
BY
SANDHYA JOSHI

2. CONTENTS
• About Aditya-L1 Mission
• Origin of the Mission
• Payloads used in Aditya L1
• Importance of the mission
• Future goals
• References

3. ABOUT ADITYA-L1
• Aditya L1 mission is second astronomy mission of ISRO.
• Aditya L1 will observe the photosphere, chromosphere and corona of the sun.
• Aditya L1 contains seven payloads in order to get multi-dimensional
observation of the sun. In addition to this, Aditya also has soft and hard x-Ray,
UV, broadband filter, magnetometer. Magnetometer observes the magnetic
field of any object.

4. ORIGIN OF THE MISSION
• In 2008, ISRO planned to launch a spacecraft to explore the surface of the sun.
• It was a 400 KG satellite with one payload ‘the visible emission line
chronograph’(VELC) to launch in 800 kilometre Low Earth orbit.
• Stepping ahead, ISRO decided to launch a spacecraft to study the sun.
• ISRO further gives the name ‘Aditya 1’. Rather, Aditya-1 designed to study only
the outer surface of the sun.

5. PAYLOADS USED IN ADITYA-L1
• This mission has highly advanced payloads, or say, instruments to prove it a
milestone. Following are those payloads:
• Visible Emission Line Coronagraph (VELC)
• Solar Ultraviolet Imaging Telescope (SUIT)
• Aditya Solar wind Particle Experiment (ASPEX)
• Plasma Analyser Package for Aditya (PAPA)
• Solar Low Energy X-ray Spectrometer (SoLEXS)
• High Energy L1 Orbiting X-ray Spectrometer (HEL1OS)
• Magnetometer

6. IMPORTANCE OF THE MISSION
• NASA on August 12,2018 launched solar probe named Parker Solar
Probe to study the Solar winds acceleration and the solar corona.
• Solar flares and other disturbances of the sun emits energetic atomic
particles and X-rays.
• These particles and X-rays affect the radio waves travelling through
Earth Ionosphere. It interferes and often causes blackouts on the
earth.
• Sometimes, solar phenomenon disturbs the Earth’s magnetic field
inducing High Voltage fluctuation.
• Also, variation in Solar weather can change the satellite Orbit or
shorten their lives and even damage on board electronics.
• Therefore, Observation of the Sun becomes necessary in order to track
Earth directed Storms and the impacts.

7. FUTURE GOALS
• Lunar Polar Exploration Mission:Indian Space Research Organisation and
Japan Aerospace exploration energy will collaborate to launch this mission for
exploring the research Pole region of the Moon.
• RISAT-1A: Rada Imaging Satellite 1A series of research satellites.
• Gaganyan: Gaganyan is an ‘Indian skewed spacecraft’.

8. REFERENCES
• https://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun
• https://shouts.site/aditya-l1-mission-indias-first-step-to-explore-the-sun
• Wikipedia